Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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What are the dimensions of the following
matrix?
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2.
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Solve for x and y:
a. | x=3,
y=2 | c. | x=6,
y=11 | b. | x=2,
y=2 | d. | x=2,
y=3 | | | | |
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3.
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Find the determinant of the following matrix:
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4.
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Find the determinant of the following matrix using the
definition of a determinant for a 3x3 matrix?
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5.
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Find the determinant of the following matrix using
expansion by minors for a 3x3 matrix:
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6.
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For the
following system of simultaneous equations, find 
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7.
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For the
following system of simultaneous equations, find  .
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8.
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For the
following system of simultaneous equations, find  .
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9.
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For the
following system of simultaneous equations, find the solution (x,y).
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10.
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For the
following system of simultaneous equations, find  .
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11.
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What position of x in the following
matrix?
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12.
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What is the definition of a matrix? a. | A rectangular
array of numbers enclosed by something that looks like a giant absolute value
signs. | c. | a rectangular
array of numbers enclosed by square brackets. | b. | a movie in three
parts | d. | any group of
numbers | | | | |
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13.
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What is the definition of a square
matrix? a. | A matrix that
consists of all perfect squares. | c. | A matrix that consists of all zeros. | b. | A matrix whose
determiniant is a perfect square. | d. | A matrix that has the same number of rows and
columns | | | | |
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14.
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Find the determinant of the following
matrix:
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15.
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Find the determinant of the following
matrix:
a. | -2 | c. | It does not have
a determinant | b. | 81 | d. | 144 | | | | |
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